61242666 has 16 divisors (see below), whose sum is σ = 124797024. Its totient is φ = 20028944.

The previous prime is 61242661. The next prime is 61242677. The reversal of 61242666 is 66624216.

It is not an unprimeable number, because it can be changed into a prime (61242661) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95976 + ... + 96611.

It is an arithmetic number, because the mean of its divisors is an integer number (7799814).

Almost surely, 2^61242666 is an apocalyptic number.

61242666 is an abundant number, since it is smaller than the sum of its proper divisors (63554358).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

61242666 is a wasteful number, since it uses less digits than its factorization.

61242666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192645.

The product of its digits is 20736, while the sum is 33.

The square root of 61242666 is about 7825.7693551497. The cubic root of 61242666 is about 394.1710243807.

The spelling of 61242666 in words is "sixty-one million, two hundred forty-two thousand, six hundred sixty-six".